/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraRendererRibbons.h
void GenerateVertexBufferCPU ( const FNiagaraGenerationInputDataCPUAccessors & CPUData, [FNiagaraRibbonCPUGeneratedVertexData](API\Plugins\Niagara\FNiagaraRibbonCPUGeneratedVertex-) & OutputData ) const